Gas burner



Feb. 12 1924. 1,483,322

J. TRAVIS GAS BURNER Filed May 10. 1922 2 Sheets-Stud l Patented Feb.12, 1924 1,483,322 PATENT OFFICE.

JEROME TRAVIS, OF TOLEDO, OHIO.

GAS BURNER. I

Applicationfiled May 10,

To all whom it may concern:

Be it known that I, JEnoMnTnAvIs, a citizen of the United States,residing at Toledo, in the county of Lucas and State of Ohio, haveinvented new and useful Improvements in Gas Burners, of which thefollowin is a specification.

i y invention relates to gas burners for burning natural or artificialgas, and designed for use in heating furnaces, stoves, ranges, and inother situations.

An object of the invention is to provide a highly eificient burner ofthe character indicated with which complete combustion is obtained,which is of simple construction, inexpensive to manufacture, durable,reliable, compact and which may be readily assembled with any desirednumber of like units.

A feature of the invention consists in the provision of a burner whichis entirely free from the back firing or'jumping of the flame back intothe mixing chamber, which so frequently happens in burners in commonuse. In my burner there is no mixture of air with the gas before itissues, so that the jumping back of the flame is impossible. Moreover,the burner furnishes its own pilot flame and continues to burn until thesupply of gas is completely cutoff,

thereby avoiding the danger of becoming extinguished when the gasressure is low and allowing the gas to escape without burning.

Other objects of the invention and the precise nature thereof willappear hereinafter.

In the accompanying drawings, which illustrate a burner constructed inaccordance with the principles of my invention,

Figure 1 is a plan view of the burner.

Figure 2 is an end elevation.

Figure 3 is a longitudinal sectional elevation at the line III-III onFigure 1, and a portion being broken away.

Figure 4 is a section at the line IV-JV' on Fig. 1. w

Figure 5 is a horizontal section of a portion of the expansion chamber,as indicated by the arrows V--V on .Figure 4.

Figure 6 is a diagrammatic view showing a group of burners.

Figure 7 is a similar View of a modified arrangement of i the burners.

The burner asherein' shown, comprises a hollow body A providingexpansion 1922. Serial No. 559,745.

chamber in which the gas is heated and expanded before it issues forburning, and a baflie B. The body A is preferably cast in a single pieceand forms the expansion chamber 10 which is substantially cylindricaland is provided at its under side with a number of hollow transversearms or pockets 11. The gas is admitted to the burner through a pipe 12,and issues therefrom through small apertures 13 formed in the upperwalls of the compartments 11.

The bafiie B comprises inclined baffle plates or walls 14 extendinglengthwise of the burner, and integral ends 15. The baffie seats on arms16 formed on the ends of the body A and which extend "laterallytherefrom, the inclined walls 14 bearing against the inclined ends ofsaid arms." The part A and B are locked together by the pipe 12 and by aplug 17 which closes the end of the expansion chamber.

In operation, the gas which enters the expansion chamber is highlyheated and expanded before it issues from the apertures 13. The pencilsof gas escaping from these apertures, strike the inclined baflie walls14 and are thereby spread or dissipated and mixed with theair at or nearthe initial burning point. This burning point is so closely held to theexpansion chamber that the latter is highly heated and the gas therebyraised to a high temperature before it issues. The flames thus producedon the opposite sidesof the expansion chamber, by the'natural upwardmovement of the heated column of air and gas ascending between thebaffle walls and over the expansion chamber, form a rapidly risingcolumn of hot flame which draws to itself an increasing amount of airwhich,

in the higher portions of the flame becomes intensely heated, thusfurnishing the very best conditions for complete combustion.

The apertures 13 are quite small,'being of such size that under normalconditions of operation and withthe usual pressure of gas supplied for.heating and lighting purposes, the gas issues with great force. Theapertures are outwardly inclined at such an angle that the pencils ofgas strike the baffle walls 14 about on a level with, or a shortdistance above thecenter line of the expansion chamber. These pencils ofgas striking the two bafile walls are spread out so as to intermingleand are defiected inwardly so that upwardly converging sheets of flameare produced, which fully unite at some distance above the can pansionchamber, in an intensely hot concentrated flame. The converging battlewalls deflect and concentrate the burning gases, increase the upwarddraft and cause the flames to envelop a large portion of the expansionchamber which is thereby raised to a high temperature. The gas is thusheated and expanded before it issues.

Figure 6 shows a group of burners arranged for use in a heating furnace.A. numberof burners may be connected in tandem by means of pipe sections20, so that a portion of the gas entering the first burn er, passes onto the other burner or burners connected in line therewith. This arrangement of burners in series gives very satis factory results. Valves (1,Z) and 0 control the supply of gas to the several series oi burners. Itwill be seen that by opening one or. more of theseyalves, either two,three, four, five or seven burners may be broughtj into use, dependingon the amount of hea-t required. The valves also serve to throttle orrestrict the flow to any desired extent, so that either a stronger weakflame may be maintained. A valve cl controls the flow through the mainpipe to the manifold 21 to which the several series of burners areconnected.

In Figure 7, a different arrangement of burners .is shown. In thisinstance, any number of burners from one to five may evidently be usedat one time. A great variety inthe arrangement and number of burnersused in any group, may be resorted to. lilodifications intheconstruction of the burner itself may also be resorted to within thespirit and scope of my inyention.

Nhat I claim as new, and desire to secure by Letters Patent of theUnited States, is,-

l. A gas burnercompris ng, 1n combinaltOIl, a heat ng chamber into whichthe fuel gas is conveyed, means providing outlets below said chamberthrough which the gas issues in upwardly directed jets for combustion,and means to direct the jets ofburning gas in a path adjacent theheating chamber and thereby maintain the latter at a high temperature,said last mentioned means com prising a battle wall directly in the pathof said jets and arranged to deflect the fuel gas toward said chamberand cause it to mix with the air as it strikes said wall.

2. In a gas burner, the combination of a heating chamber into which thefuel gas is'directed, means providing outlets for the beneath saidchamber through which the gas issues in upwardlydirected ets, andupwardly and inwardly inclined deflector plates in the path of said jetsfor directing theis suing gas and causing it to envelop said chamber,whereby the gas in said chamber is heated to a high temperature beforeit issues.

8. In a gas burner, the combination of a heating chamber into which thefuel gas is directed, means providing outlets for jets of gas beneathsaid chamber, and baliie walls on opposite sides of said chamber in thepath of said jets and against which the said jets are directed, saidwalls being arranged to deflect the burning gas lIlWiLICllj toward theheating chamber.

l. A gas burner comprising a horizontally disposed heating and expansionchamber into which the fuel gas is directed, means providing restrictedapertures through which the gas issues at points below said chamber,said apertures being arranged to direct the gas upwardly in jetsopposite sides of said chamber, and battle walls directly in the path ofthe upwardly moving jets of gas arranged at such an angle to said wallsthat the burning gas is deflected inwardly and upwardly on oppositesides of said chamber.

5. A gas burner comprising a horizontally disposed heating and expansionchamber into which the fuel gas is directed, means roviding restrictedapertures through wliich the gas issues at points below said chamber,said apertures bein upwardly and outwardly inclined and arranged todirect the gas upwardly and outwardly in jets at opposite sides of saidchamber, and battle walls directly in the path of the upwardly andoutwardly moving. jets of gas arranged at such an angle to said wallsthat the burning gas is deflected inwardly and, upwardly on oppositesides of said chamber.

6. A gas burner comprising a main heating and expansion chamber andlateral extensions thereof at the lower side of saidv chamber, saidextensions having perforations in the walls thereof through which-theissues in jets at opposite sidesofthe main chamber, said perforationsarranged to direct the issuing jets of gas upward, and inwardly andupwardly inclined deflecting walls in the direct pathof said jets andoperable to deflect the upwardly moving jets of gas inward and causethem to envelop the major portion of said chamber.

A gas burner comprising a main heating and expansion chamber and lateralextensions thereof at the lower side ofsaid chamber, said extensionshaving perforations in the walls thereof through which the gas issuesin, jets at opposite sides of the main chamber, said perforations anranged to direct the issuing jets ofgasupward, and upwardly, and.inwardly inclined battle wallsat opposite sidesof said chamber directlyirrthe path of the upwardly movingjets of gas. I

8. A gas burner comprising a horizontally disposed heating chamberhaving a. pipe connection at one end for the entrance of fuel gas'and aremovable plug at the opposite end permitting a pipe connection wherebya portion of the gas entering'said cham her and heated therein may beconducted to another burner or burners, means for directing gas fromsaid chamber and causing it to issue through restricted aperturesprovided at opposite sides of the chamber, in upwardly directed streamsor pencils of gas, and inclined deflector plates directly in the path ofsaid pencils of gas and arranged to confine and direct the flames towardsaid chamber.

9. A as burner comprising a horizontally dispose heating chamber havinga pipe connection at one end for the entrance oi fuel gas and aremovable plug at the opposite end permitting a pipe connection wherebya portion of the gas entering said chamber and heated therein may beconducted to another burner or burners, means for directing gas fromsaid chamber and causing it to issue through restricted aperturesprovidedat opposite sides of the chamber, in upwardly directed streamsor pencils of gas, and upwardly and inwardly inclined baitle wallsextending lengthwise of said heating chamber on opposite sides thereof,said walls arranged in the direct path of said pencils of gas andoperable to spread the gas as it strikes said walls and mix it with theair and also cause the upwardly moving flames to converge and meet abovesaid chamber.

10. In a gas burner, in combination a heating and expansion chamber castin a single piece and comprising an approximately cylindrical horizontalbody having lateral extensions arranged at intervals along the lowerside thereof, said extensions being formed with restricted upwardlydirected openings for the issuance of the gas, and baffles positionedabove said openings.

11. A gas burner comprising a hollow body roviding a heating chamber,said body tormed with threaded openings at its ends, a pipe and plugthreaded in said openings respectively, a one piece baflie comprisingside plates or Walls extending lengthwise of said body and end plates tofit over the ends of said body, said body provided with lugs to supportthe bafile, said end plates being arranged to pass beneath said pipe andplug, whereby the bafiie is locked to said body.

12. The combination of a container for fuel gas, said container havingupwardly directed outlet openings in the walls thereof arranged topermit the gas to issue in jets directed upwardly from said openings, abattle Wall in the path of said jets at an acute angle thereto, saidwall being positioned and arranged to form a deflector and mixer for theair and gas whereby an explosive mixture is formed at said wall andburns in a flame extending upwardly from the wall at an acute anglethereto.

Signed at Toledo, in the county of Lucas and State of Ohio, this 6th dayof May, 1922.

JEROME TRAVIS.

